APA (7 वां संस्करण) प्रशस्ति पत्र

Corey, G. (1990). Theory and practice of counselling and psychotherapy (3rd ed.). Brooks/cole.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Corey, Gerald. Theory and Practice of Counselling and Psychotherapy. 3rd ed. California: Brooks/cole, 1990.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Corey, Gerald. Theory and Practice of Counselling and Psychotherapy. 3rd ed. Brooks/cole, 1990.